A downhole centraliser arranged to receive a downhole tubular has a tubular body with opposed ends and is formed of plastics material A respective end ring is mounted in the or each opposed end and is formed of a plastics material having a Youngs Moldulus no greater than that of the tubular body.
申请公布号
US2012138289(A1)
申请公布日期
2012.06.07
申请号
US201113274751
申请日期
2011.10.17
申请人
BEGLEY AARON;PEZET PETER BRENDON THOMAS;MATRIX COMPOSITES & ENGINEERING LIMITED
